package com.webPV;
import org.apache.hadoop.io.IntWritable;
import org.apache.hadoop.io.Text;
import org.apache.hadoop.mapreduce.Reducer;
import java.io.IOException;


public class webReducer extends Reducer<Text,IntWritable,Text,IntWritable> {
    private IntWritable outputValue = new IntWritable(  );
    @Override
    protected void reduce(Text key, Iterable<IntWritable> values, Context context) throws IOException, InterruptedException, IOException {
        //key ：省份；  value：<1,1,1,1>
        int sum = 0;
        for (IntWritable value:values) {
            sum+= value.get();
        }
        outputValue.set( sum );
        context.write( key,outputValue );
    }
}
